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WorksheetsUnit 4 Test, Version A
Total questions: 15
Worksheet time: 23mins
What is the melting point of this substance at 1 ATM of pressure?
40
60
100
110
What will occur when the substance changes from 0o C to 100oC at a constant pressure of 30 atm?
condensation
evaporation
melting
freezing
Given the heating curve of a solid being heated at a constant rate, what is the boiling point of this substance?
20°C
50°C
110°C
170°C
In which region(s) of the graph would the substance be a liquid and a gas at the same time?
Region 1
Region 2
Region 3
Region 4
Region 5
A weather balloon is filled with 10.0L of helium at a temperature of 35oC and a pressure of 5 atm. What is the pressure of the helium in the balloon in the upper atmosphere where the temperature is -25oC and the volume becomes 30.0L?
A mixture of hydrogen, nitrogen, and water vapor has a total pressure of 864 mmHg. The partial pressure of hydrogen is 220 mmHg and that of nitrogen is 410 mmHg. What is the partial pressure of water vapor?
A student measures the pressure and volume of an empty water bottle to be 1.4 atm and 2.3 L. She then decreases the pressure to 65.85 kPa. What is the new volume?
Determine the number of moles in a container of gas at STP with a volume of 99,200 mL.
If I place 5 moles of O2 and 2 moles of H2 in a 40 L container at a temperature of 300 oC, what will the pressure (in atm) of the resulting mixture of gases be?
